c++ - Sockets - send and receive -

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I am currently writing a chat server in C ++ when a user joins it, then I open a socket And I make one to send two more data, to get another data.

Now my question:
I have to check that what is the second thread is currently using the socket, or what / recv function will wait until the socket is ready?

is sending and getting it together from the TCP socket should be perfectly fine. (Except for any possible OS bug)


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